Sandy’s companies have developed over $4 billion of wind and solar facilities now operating around the country. He was founder and president of Greenlight Energy, a leading independent wind energy company that was acquired by BP in 2006. Sandy was also the founder of Axio Power, a utility-scale solar developer; Columbia Power Technologies, a pioneer in wave energy technology; and Greenlight Biofuels, a waste-to-energy company. In 2014, Sandy was appointed to serve on the newly created Virginia Energy Council by Virginia Governor Terry McAuliffe. He was also presented with the Leadership in Energy Award at the Keystone Center’s 20th Annual Leadership Awards dinner. He has a BS in commerce from the McIntire School of Commerce at the University of Virginia.

Mark has dedicated more than 15 years of his career to the renewable energy sector. As CEO of Apex Clean Energy, Mark leads the execution of corporate strategy. Since Apex’s founding, he has built a team of more than 200 professionals focused on creating customized clean energy solutions for businesses, government, utilities, and others. With Apex’s core values as a driving force, Mark has overseen the implementation of more than 2 GW of wind and solar energy facilities and the financing of an additional 1 GW. He previously served as president and COO of Apex from 2009 to 2016.

Mark serves on the boards of the American Council on Renewable Energy (ACORE) and Advanced Energy Economy (AEE). From 2005 to 2009, he was a director at Horizon Wind Energy/EDPR. Prior to Horizon, Mark worked for the North American sales subsidiary of Vestas Wind Systems.

Mark is a former naval officer and helicopter pilot. He holds a BS in aerospace engineering from the U.S. Naval Academy and an MBA from the Kellogg Graduate School of Management.